冷戦 れいせん がた思考 しこうではありませんでした
reisengata shikōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 冷戦型思考

1. Was not cold war thinking.; Was not thinking in a cold war manner.

Past/Perfective
Negative
Polite
Formal Register